Malware Analysis Report

2024-08-06 18:39

Sample ID 240620-2jmeravckj
Target 09dea7baa0180616aafef84a488f37bf_JaffaCakes118
SHA256 f1f4cc92cd2307520f5f1ac11311134207142a1a45d595549b61d317633ca4b1
Tags
darkcomet guest16_min persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f1f4cc92cd2307520f5f1ac11311134207142a1a45d595549b61d317633ca4b1

Threat Level: Known bad

The file 09dea7baa0180616aafef84a488f37bf_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

darkcomet guest16_min persistence rat trojan

Darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-20 22:36

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 22:36

Reported

2024-06-20 22:39

Platform

win7-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\JavaUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\JavaUpdate.exe" C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1036 set thread context of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 34 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 35 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 1036 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 bshades1993.no-ip.org udp
ID 212.117.53.118:7770 bshades1993.no-ip.org tcp
ID 212.117.53.118:7770 bshades1993.no-ip.org tcp
ID 212.117.53.118:7770 bshades1993.no-ip.org tcp
US 8.8.8.8:53 bshades1993.no-ip.org udp
ID 212.117.53.118:7770 bshades1993.no-ip.org tcp
ID 212.117.53.118:7770 bshades1993.no-ip.org tcp
ID 212.117.53.118:7770 bshades1993.no-ip.org tcp
US 8.8.8.8:53 bshades1993.no-ip.org udp
ID 212.117.53.118:7770 bshades1993.no-ip.org tcp
ID 212.117.53.118:7770 bshades1993.no-ip.org tcp

Files

memory/1036-0-0x00000000744F1000-0x00000000744F2000-memory.dmp

memory/1036-1-0x00000000744F0000-0x0000000074A9B000-memory.dmp

memory/1036-2-0x00000000744F0000-0x0000000074A9B000-memory.dmp

memory/2512-11-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-22-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-24-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-23-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/1036-21-0x00000000744F0000-0x0000000074A9B000-memory.dmp

memory/2512-20-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-19-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-17-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-16-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-13-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2512-12-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-8-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-10-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-7-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-5-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-3-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-25-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2512-27-0x0000000000400000-0x00000000004B4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 22:36

Reported

2024-06-20 22:39

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JavaUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\JavaUpdate.exe" C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4480 set thread context of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 34 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 35 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 36 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4480 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\09dea7baa0180616aafef84a488f37bf_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp
US 8.8.8.8:53 bshades1993.no-ip.org udp

Files

memory/4480-0-0x0000000074D72000-0x0000000074D73000-memory.dmp

memory/4480-1-0x0000000074D70000-0x0000000075321000-memory.dmp

memory/4480-2-0x0000000074D70000-0x0000000075321000-memory.dmp

memory/2892-4-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-3-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-6-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-10-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-12-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-11-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-9-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/4480-8-0x0000000074D70000-0x0000000075321000-memory.dmp

memory/2892-13-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/4480-14-0x0000000074D70000-0x0000000075321000-memory.dmp

memory/2892-15-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-16-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-17-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-18-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-19-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-20-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-21-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-22-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-23-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-24-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-25-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-26-0x0000000000400000-0x00000000004B4000-memory.dmp

memory/2892-27-0x0000000000400000-0x00000000004B4000-memory.dmp